code: def __init__(self, *args, **kwargs):
      pass
  
file_path: audio/test/torchaudio_unittest/example/emformer_rnnt/test_tedlium3_lightning.py
imports: from contextlib import contextmanager
  from functools import partial
  from unittest.mock import patch
  import torch
  from parameterized import parameterized
  from torchaudio._internal.module_utils import is_module_available
  from torchaudio_unittest.common_utils import skipIfNoModule, TorchaudioTestCase
  from .utils import MockCustomDataset, MockDataloader, MockSentencePieceProcessor
label_desc: Use image node_id 1 to create a new MockTEDLIUM object  with example: obj = MockTEDLIUM()